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On the prognosis of replanted teeth after severe luxation trauma
146
Abstracts
centrated in the coronal and apical thirds of the roots.
Tooth gemination - different forms and treatment possibilities. Ch. Krenkel, I. Grunert and O. Tutzer, Salzburg
Geminated teeth in the upper front represent a major aesthetical and functional problem for adolescents. The extraction of these teeth and their prosthodontic replacement can lead to unsatisfactory results. As far as the degree of the division is concerned, there are 4 typical forms, which have to be treated differently. The therapy can vary from a crown restoration to twin separation, extraction or transplantation. This is presented with 4 typical cases.
Indication and results of autogenous tooth transplantation. C. Henrichvark and F. W. Neukam, Hannover
Within the framework of a clinical and radiological retrospective study, 102 autogenous 'tooth grafts were re-evaluated after observation periods between 7 and 46 months. The results were decisively influenced by the stage of root growth at the time of transplantation, while chronic or subacute inflammations of the host site and treatment with antibiotics at the time of transplantation failed to have any significant effect on the prognosis. With a success rate of 83% in autografts with nonconpleted root growth, i.e., still open apical foramina, the antogenous transplantation of teeth may be regarded as adequate treatment alternative to root canal treatment or apicoectomy of molar teeth as well as to endosseous implants.
SPLINTING AND REPLANTATION Different splinting techniques and their indications for surgical tooth preservation. M. Hagen and C. U. Fritzemeier, DOsseldorf
After a retrospective review of historical splinting methods the pros and cons of present-day techniques are considered. Today's modern materials and methods allow the type of splinting to match the actual degree of destruction of the jaw
segment involved. Particular emphasis has been placed on those techniques that can be performed without lab. work, such as Schuchardt's splints and bonded splints.
The preservation of teeth and bone structure by means of dental splinting after cyst operations. K. Wangerin, Kiel
Major cyst operations using conventional techniques involving the removal of the loosened teeth result in losses of alveolar height and, at a later stage, insufficient denture-bearing areas. In a post-treatment evaluation of 12 cases with 39 loosened teeth, we observed that the alveolar ridge could be preserved after cystectomy by splinting all teeth involved whether they were worth being preserved or not. After new bone formation in the former lumina of the cysts, 36 out of the 39 teeth for which primarily extraction was indicated, could be saved.
On the prognosis of replanted teeth after severe luxation trauma. G. H. Nentwig, Ch. Berbecariu and S. Sailer, MOnchen
Replantation with endodontically appried transapical ceramic pins shows long-time better results. The ceramic pin is an exact root-filling appliance and is also a biocompatible root-holding device as soon as there is root-resorption. The results are shown by means of a comparative survey.
Apical seal problems in therapeutic replantations. M. Loeck, J. Becker and P. Reichart, Berlin
After the therapeutic replantation of 53 molars within a period of 2 years, these teeth were subjected to clinical (sulcus fluid rate and degree of looseness) and radiological post-treatment evaluations. Guttapercha, A1203, titanium, and hydroxyl apatite cones were used as filling materials. The mean survival of the replanted teeth was 16.3 months; 6 cases had to be considered as failures. According to observations made to date, the root-filling material seems to have no influence on the success rate of this treatment.
Results of replantation following traumatic luxation of teeth. C. P. Cornelius, M. Ehrenfeld and T. Umbach, TEibingen
In a post-treatment study, 26 out of 59 permanent teeth replanted between 1970 and 1985 following traumatic:luxation were in situ. They were subject to a clinical and radiological examination; their mobility and shock absorption behavior were measured with the aid of the periotest method. The radiological resorption patterns could b e well correlated with the periotest values of the same teeth. The important factors governing the success of a replantation are described, although no safe individual predictions as to the survival of a graft can be made at the onset of the treatment. After the completion of the secondary dentition, the immediate insertion of alloplastic implants seems of be an alternative to replantation.
PERIODONTICS Repair of gingival recession with free mucosal grafts. 2 complementary procedures. B. Thie and B. Steegmann, K61n
35 cases of gingival recession were primarily treated with free mucosal grafts. In 18 cases (51.4%), the procedure was primarily successful; in 17 cases (46.6%), an additional coronal sliding flap operation was required for satisfactory repair of the recession, which was thus achieved in 16 cases.
Surgical treatment modes for teeth with previous periodontal and apical bone defects. W. Hacker and H. Fischbach, Bisingen
Within a period of 2 years, 257 teeth with apical (32 teeth) or periodontal (225) bone defects were treated in 62 patients by filling the defects with hydroxyl apatite. 110 teeth with bone pocket depths under 7 mm in the same patients served as controls. All teeth with apical defects healed without complications, 5 out of °the 225 teeth with deep bone pockets were lost. The comparison of the teeth treated with hydroxyl apatite and the untreated teeth failed to reveal marked differences until after 1 year: 2.5 against 3.15 mm; after 2 years: 2.6 against 3.8 mm. Histological examinations of the removed teeth
Abstracts
centrated in the coronal and apical thirds of the roots.
Tooth gemination - different forms and treatment possibilities. Ch. Krenkel, I. Grunert and O. Tutzer, Salzburg
Geminated teeth in the upper front represent a major aesthetical and functional problem for adolescents. The extraction of these teeth and their prosthodontic replacement can lead to unsatisfactory results. As far as the degree of the division is concerned, there are 4 typical forms, which have to be treated differently. The therapy can vary from a crown restoration to twin separation, extraction or transplantation. This is presented with 4 typical cases.
Indication and results of autogenous tooth transplantation. C. Henrichvark and F. W. Neukam, Hannover
Within the framework of a clinical and radiological retrospective study, 102 autogenous 'tooth grafts were re-evaluated after observation periods between 7 and 46 months. The results were decisively influenced by the stage of root growth at the time of transplantation, while chronic or subacute inflammations of the host site and treatment with antibiotics at the time of transplantation failed to have any significant effect on the prognosis. With a success rate of 83% in autografts with nonconpleted root growth, i.e., still open apical foramina, the antogenous transplantation of teeth may be regarded as adequate treatment alternative to root canal treatment or apicoectomy of molar teeth as well as to endosseous implants.
SPLINTING AND REPLANTATION Different splinting techniques and their indications for surgical tooth preservation. M. Hagen and C. U. Fritzemeier, DOsseldorf
After a retrospective review of historical splinting methods the pros and cons of present-day techniques are considered. Today's modern materials and methods allow the type of splinting to match the actual degree of destruction of the jaw
segment involved. Particular emphasis has been placed on those techniques that can be performed without lab. work, such as Schuchardt's splints and bonded splints.
The preservation of teeth and bone structure by means of dental splinting after cyst operations. K. Wangerin, Kiel
Major cyst operations using conventional techniques involving the removal of the loosened teeth result in losses of alveolar height and, at a later stage, insufficient denture-bearing areas. In a post-treatment evaluation of 12 cases with 39 loosened teeth, we observed that the alveolar ridge could be preserved after cystectomy by splinting all teeth involved whether they were worth being preserved or not. After new bone formation in the former lumina of the cysts, 36 out of the 39 teeth for which primarily extraction was indicated, could be saved.
On the prognosis of replanted teeth after severe luxation trauma. G. H. Nentwig, Ch. Berbecariu and S. Sailer, MOnchen
Replantation with endodontically appried transapical ceramic pins shows long-time better results. The ceramic pin is an exact root-filling appliance and is also a biocompatible root-holding device as soon as there is root-resorption. The results are shown by means of a comparative survey.
Apical seal problems in therapeutic replantations. M. Loeck, J. Becker and P. Reichart, Berlin
After the therapeutic replantation of 53 molars within a period of 2 years, these teeth were subjected to clinical (sulcus fluid rate and degree of looseness) and radiological post-treatment evaluations. Guttapercha, A1203, titanium, and hydroxyl apatite cones were used as filling materials. The mean survival of the replanted teeth was 16.3 months; 6 cases had to be considered as failures. According to observations made to date, the root-filling material seems to have no influence on the success rate of this treatment.
Results of replantation following traumatic luxation of teeth. C. P. Cornelius, M. Ehrenfeld and T. Umbach, TEibingen
In a post-treatment study, 26 out of 59 permanent teeth replanted between 1970 and 1985 following traumatic:luxation were in situ. They were subject to a clinical and radiological examination; their mobility and shock absorption behavior were measured with the aid of the periotest method. The radiological resorption patterns could b e well correlated with the periotest values of the same teeth. The important factors governing the success of a replantation are described, although no safe individual predictions as to the survival of a graft can be made at the onset of the treatment. After the completion of the secondary dentition, the immediate insertion of alloplastic implants seems of be an alternative to replantation.
PERIODONTICS Repair of gingival recession with free mucosal grafts. 2 complementary procedures. B. Thie and B. Steegmann, K61n
35 cases of gingival recession were primarily treated with free mucosal grafts. In 18 cases (51.4%), the procedure was primarily successful; in 17 cases (46.6%), an additional coronal sliding flap operation was required for satisfactory repair of the recession, which was thus achieved in 16 cases.
Surgical treatment modes for teeth with previous periodontal and apical bone defects. W. Hacker and H. Fischbach, Bisingen
Within a period of 2 years, 257 teeth with apical (32 teeth) or periodontal (225) bone defects were treated in 62 patients by filling the defects with hydroxyl apatite. 110 teeth with bone pocket depths under 7 mm in the same patients served as controls. All teeth with apical defects healed without complications, 5 out of °the 225 teeth with deep bone pockets were lost. The comparison of the teeth treated with hydroxyl apatite and the untreated teeth failed to reveal marked differences until after 1 year: 2.5 against 3.15 mm; after 2 years: 2.6 against 3.8 mm. Histological examinations of the removed teeth